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<p>在品优购中介绍过微信支付，在传智健康中也使用了Echarts实现数据统计。这里纯当作复习，或者另一种层面来说，本篇介绍微服务架构下的微信支付和统计分析。</p>
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<span id="more"></span>
<h1 id="微信支付"><a href="#微信支付" class="headerlink" title="微信支付"></a>微信支付</h1><h2 id="1-开发订单模块"><a href="#1-开发订单模块" class="headerlink" title="1.开发订单模块"></a>1.开发订单模块</h2><p>在service模块下创建子模块service_order</p>
<h3 id="1-1订单controller"><a href="#1-1订单controller" class="headerlink" title="1.1订单controller"></a>1.1订单controller</h3><pre class="line-numbers language-java" data-language="java"><code class="language-java">@RestController
@CrossOrigin
@RequestMapping("/serviceorder/order")
public class TOrderController {

    @Autowired
    private TOrderService orderService;

    //根据课程id和请求头传过来的token生成订单
    @PostMapping("createOrder/{courseId}")
    public R createOrder(@PathVariable String courseId, HttpServletRequest request){
        //返回订单号
        String orderNo = orderService.createOrder(courseId, JwtUtils.getMemberIdByJwtToken(request));
        return R.ok().data("orderId", orderNo);
    }

    //根据id获取订单信息
    @GetMapping("getOrder/{orderId}")
    public R get(@PathVariable String orderId) {
        QueryWrapper&lt;TOrder&gt; wrapper = new QueryWrapper&lt;&gt;();
        wrapper.eq("order_no",orderId);
        TOrder order = orderService.getOne(wrapper);
        return R.ok().data("item", order);
    }
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h3 id="1-2Feign实现远程调用"><a href="#1-2Feign实现远程调用" class="headerlink" title="1.2Feign实现远程调用"></a>1.2Feign实现远程调用</h3><p>在service_edu创建接口实现根据课程id获取课程信息，返回课程信息对象</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">//根据课程id查询课程信息
@GetMapping("getDto/{courseId}")
public com.atguigu.commonutils.vo.CourseInfoForm getCourseInfoDto(@PathVariable String courseId) {
        CourseInfoForm courseInfoForm = courseService.getCourseInfo(courseId);
        com.atguigu.commonutils.vo.CourseInfoForm courseInfo = new com.atguigu.commonutils.vo.CourseInfoForm();
        BeanUtils.copyProperties(courseInfoForm,courseInfo);
        return courseInfo;
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>在service_ucenter创建接口实现用户id获取用户信息，返回用户信息对象</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">//根据token字符串获取用户信息
@PostMapping("getInfoUc/{id}")
public com.atguigu.commonutils.vo.UcenterMember getInfo(@PathVariable String id) {
        //根据用户id获取用户信息
        UcenterMember ucenterMember = memberService.getById(id);
        com.atguigu.commonutils.vo.UcenterMember memeber = new com.atguigu.commonutils.vo.UcenterMember();
        BeanUtils.copyProperties(ucenterMember,memeber);
        return memeber;
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>在service_order模块创建接口，实现远程调用</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Component
@FeignClient(name = "service-edu")
public interface EduClient {

    @GetMapping("/serviceedu/coursefront/getOrderCourseInfo/{courseId}")
    public com.atguigu.commonutils.vo.CourseWebVo getOrderCourseInfo(@PathVariable("courseId") String courseId);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Component
@FeignClient(name = "service-ucenter")
public interface UcenterClient {
    //根据id获取用户信息
    @GetMapping("/api/ucenter/member/getInfoById/{id}")
    public UcenterMember getInfoById(@PathVariable("id") String id);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h3 id="1-3订单service"><a href="#1-3订单service" class="headerlink" title="1.3订单service"></a>1.3订单service</h3><pre class="line-numbers language-java" data-language="java"><code class="language-java">@Autowired
private EduClient eduClient;
@Autowired
private UcenterClient ucenterClient;

@Override
public String createOrder(String courseId, String memberId) {
    //查询课程信息
    CourseWebVo courseDto = eduClient.getOrderCourseInfo(courseId);
    //查询用户信息
    UcenterMember ucenterMember = ucenterClient.getInfoById(memberId);

    //创建订单
    TOrder order = new TOrder();
    order.setOrderNo(OrderNoUtil.getOrderNo());
    order.setCourseId(courseId);
    order.setCourseTitle(courseDto.getTitle());
    order.setCourseCover(courseDto.getCover());
    order.setTeacherName(courseDto.getTeacherName());
    order.setTotalFee(courseDto.getPrice());
    order.setMemberId(memberId);
    order.setMobile(ucenterMember.getMobile());
    order.setNickname(ucenterMember.getNickname());
    order.setStatus(0);
    order.setPayType(1);
    baseMapper.insert(order);

    return order.getOrderNo();
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h3 id="1-4总结"><a href="#1-4总结" class="headerlink" title="1.4总结"></a>1.4总结</h3><p><img src="https://pluto-1300780100.cos.ap-nanjing.myqcloud.com/img/05-生成订单接口.png" alt="05-生成订单接口"></p>
<h2 id="2-微信支付接口"><a href="#2-微信支付接口" class="headerlink" title="2.微信支付接口"></a>2.微信支付接口</h2><h3 id="2-1生成微信支付二维码"><a href="#2-1生成微信支付二维码" class="headerlink" title="2.1生成微信支付二维码"></a>2.1生成微信支付二维码</h3><p>引入微信支付依赖</p>
<pre class="line-numbers language-markup" data-language="markup"><code class="language-markup"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependencies</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>com.github.wxpay<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>wxpay-sdk<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">&gt;</span></span>0.0.3<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>com.alibaba<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>fastjson<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependencies</span><span class="token punctuation">&gt;</span></span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>编写TPayLogController</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@RestController
@RequestMapping("/serviceorder/paylog")
@CrossOrigin
public class TPayLogController {

    @Autowired
    private TPayLogService payLogService;

    //生成微信支付二维码
    @GetMapping("createNative/{orderNo}")
    public R createNative(@PathVariable String orderNo){
        //返回的除了二维码url，还有其他信息，用map包装
        Map map = payLogService.createNative(orderNo);
        return R.ok().data(map);
    }
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>编写service实现方法</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Override
public Map createNative(String orderNo) {
    try {
        //根据订单id获取订单信息
        QueryWrapper&lt;TOrder&gt; wrapper = new QueryWrapper&lt;&gt;();
        wrapper.eq("order_no",orderNo);
        TOrder order = orderService.getOne(wrapper);

        Map m = new HashMap();
        //1、设置支付参数
        m.put("appid", "wx74862e0dfcf69954");
        m.put("mch_id", "1558950191");
        m.put("nonce_str", WXPayUtil.generateNonceStr());
        m.put("body", order.getCourseTitle());
        m.put("out_trade_no", orderNo);
        m.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue()+"");
        m.put("spbill_create_ip", "127.0.0.1");
        m.put("notify_url", "http://guli.shop/api/order/weixinPay/weixinNotify\n");
        m.put("trade_type", "NATIVE");

        //2、HTTPClient来根据URL访问第三方接口并且传递参数
        HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");

        //client设置参数
        client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
        client.setHttps(true);
        client.post();
        //3、返回第三方的数据
        String xml = client.getContent();
        Map&lt;String, String&gt; resultMap = WXPayUtil.xmlToMap(xml);


        //4、封装返回结果集

        Map map = new HashMap&lt;&gt;();
        map.put("out_trade_no", orderNo);
        map.put("course_id", order.getCourseId());
        map.put("total_fee", order.getTotalFee());
        map.put("result_code", resultMap.get("result_code"));
        map.put("code_url", resultMap.get("code_url"));


        return map;
    } catch (Exception e) {
        e.printStackTrace();
        throw new GuliException(20001,"支付失败");
    }
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h3 id="2-2获取支付状态接口"><a href="#2-2获取支付状态接口" class="headerlink" title="2.2获取支付状态接口"></a>2.2获取支付状态接口</h3><p>编写Controller</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">//获取支付状态
@GetMapping("queryPayStatus/{orderNo}")
public R queryPayStatus(@PathVariable String orderNo){
    Map&lt;String,String&gt; map = payLogService.queryPayStatus(orderNo);
    if(map==null){
        return R.error().message("支付出错");
    }
    if (map.get("trade_state").equals("SUCCESS")) {//如果成功
        //更改订单状态
        payLogService.updateOrderStatus(map);
        return R.ok().message("支付成功");
    }
    return R.ok().code(25000).message("支付中");
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>实现Service</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Override
public Map&lt;String, String&gt; queryPayStatus(String orderNo) {
    try {
        //1、封装参数
        Map m = new HashMap&lt;&gt;();
        m.put("appid", "wx74862e0dfcf69954");
        m.put("mch_id", "1558950191");
        m.put("out_trade_no", orderNo);
        m.put("nonce_str", WXPayUtil.generateNonceStr());

        //2、设置请求
        HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
        client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
        client.setHttps(true);
        client.post();

        //3、返回第三方的数据
        String xml = client.getContent();
        //4、转成Map
        Map&lt;String, String&gt; resultMap = WXPayUtil.xmlToMap(xml);

        //5、返回
        return resultMap;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

@Override
public void updateOrderStatus(Map&lt;String, String&gt; map) {
    //获取订单id
    String orderNo = map.get("out_trade_no");
    //根据订单id查询订单信息
    QueryWrapper&lt;TOrder&gt; wrapper = new QueryWrapper&lt;&gt;();
    wrapper.eq("order_no",orderNo);
    TOrder order = orderService.getOne(wrapper);

    if(order.getStatus().intValue() == 1) {
        return;
    }

    order.setStatus(1);
    orderService.updateById(order);

    //记录支付日志
    TPayLog payLog=new TPayLog();
    payLog.setOrderNo(order.getOrderNo());//支付订单号
    payLog.setPayTime(new Date());
    payLog.setPayType(1);//支付类型
    payLog.setTotalFee(order.getTotalFee());//总金额(分)
    payLog.setTradeState(map.get("trade_state"));//支付状态
    payLog.setTransactionId(map.get("transaction_id"));
    payLog.setAttr(JSONObject.toJSONString(map));
    baseMapper.insert(payLog);//插入到支付日志表
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h1 id="统计分析"><a href="#统计分析" class="headerlink" title="统计分析"></a>统计分析</h1><h2 id="1-生成统计数据"><a href="#1-生成统计数据" class="headerlink" title="1.生成统计数据"></a>1.生成统计数据</h2><h3 id="1-1功能实现"><a href="#1-1功能实现" class="headerlink" title="1.1功能实现"></a>1.1功能实现</h3><p>在service模块下创建子模块service_statistics</p>
<p>（1）在service_ucenter模块创建接口，统计某一天的注册人数</p>
<p>controller：</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@GetMapping(value = "countregister/{day}")
public R registerCount(
        @PathVariable String day){
    Integer count = memberService.countRegisterByDay(day);
    return R.ok().data("countRegister", count);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>Service：</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Override
public Integer countRegisterByDay(String day) {
    return baseMapper.selectRegisterCount(day);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>
<p>Mapper：</p>
<pre class="line-numbers language-markup" data-language="markup"><code class="language-markup"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>select</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>selectRegisterCount<span class="token punctuation">"</span></span> <span class="token attr-name">resultType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>java.lang.Integer<span class="token punctuation">"</span></span><span class="token punctuation">&gt;</span></span>
    SELECT COUNT(1)
    FROM ucenter_member
    WHERE DATE(gmt_create) = #{value}
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>select</span><span class="token punctuation">&gt;</span></span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>（2）在service_statistics模块创建远程调用接口</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Component
@FeignClient(name = "service-ucenter")
public interface UcenterClient {
    @GetMapping("/api/ucenter/member/countRegister/{day}")
    public R countRegister(@PathVariable("day") String day);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>（3）生成数据接口Controller</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">//新增
@PostMapping("add/{day}")
public R createStatisticsByDate(@PathVariable String day){
    dailyService.createStatisticsByDate(day);
    return R.ok();
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>（4）Service实现方法</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Autowired
private UcenterClient ucenterClient;

@Override
public void createStatisticsByDate(String day) {
    //删除已存在的统计对象
    QueryWrapper&lt;StatisticsDaily&gt; wrapper =new QueryWrapper&lt;&gt;();
    wrapper.eq("date_calculated", day);
    baseMapper.delete(wrapper);

    //获取统计信息
    Integer registerNum = (Integer) ucenterClient.countRegister(day).getData().get("countRegister");
    Integer loginNum = RandomUtils.nextInt(100, 200);//TODO
    Integer videoViewNum = RandomUtils.nextInt(100, 200);//TODO
    Integer courseNum = RandomUtils.nextInt(100, 200);//TODO

    //创建统计对象
    StatisticsDaily daily = new StatisticsDaily();
    daily.setRegisterNum(registerNum);
    daily.setLoginNum(loginNum);
    daily.setVideoViewNum(videoViewNum);
    daily.setCourseNum(courseNum);
    daily.setDateCalculated(day);

    baseMapper.insert(daily);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h3 id="1-2定时任务"><a href="#1-2定时任务" class="headerlink" title="1.2定时任务"></a>1.2定时任务</h3><p>我们没必要每次都去手动生成统计数据，我们可以设置一个定时任务，当项目运行时，每天凌晨1点自动统计上一天的数据。</p>
<p>这就需要Spring定时任务的支持。</p>
<p>（1）在启动类上添加注解@EnableScheduling</p>
<p>（2）创建定时任务类，使用cron表达式</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Component
public class ScheduledTask {

    @Autowired
    private StatisticsDailyService dailyService;

    /**
     * 每天凌晨1点执行定时
     */
    @Scheduled(cron = "0 0 1 * * ?")
    public void task2() {
        //获取上一天的日期
        String day = DateUtil.formatDate(DateUtil.addDays(new Date(), -1));
        dailyService.createStatisticsByDay(day);

    }
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h2 id="2-统计数据图表显示"><a href="#2-统计数据图表显示" class="headerlink" title="2.统计数据图表显示"></a>2.统计数据图表显示</h2><h3 id="2-1后端接口实现"><a href="#2-1后端接口实现" class="headerlink" title="2.1后端接口实现"></a>2.1后端接口实现</h3><p>Controller:</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">//根据条件返回图表需要的数据用于显示
@GetMapping("showChart/{type}/{begin}/{end}")
public R showChart(@PathVariable String type,@PathVariable String begin,@PathVariable String end){
    //用map封装需要的数据
    Map&lt;String,Object&gt; map = dailyService.showChart(type,begin,end);
    return R.ok().data(map);
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>Service：</p>
<pre class="line-numbers language-java" data-language="java"><code class="language-java">@Override
public Map&lt;String, Object&gt; showChart(String type, String begin, String end) {
    QueryWrapper&lt;StatisticsDaily&gt; wrapper = new QueryWrapper&lt;&gt;();
    wrapper.between("date_calculated",begin,end);
    wrapper.select(type, "date_calculated");
    List&lt;StatisticsDaily&gt; statisticsDailies = baseMapper.selectList(wrapper);

    Map&lt;String, Object&gt; map = new HashMap&lt;&gt;();
    //定义两个list用于返回图表需要的时间和数量数据
    List&lt;Integer&gt; numList = new ArrayList&lt;&gt;();
    List&lt;String&gt; dateList = new ArrayList&lt;&gt;();

    for (StatisticsDaily statisticsDaily : statisticsDailies) {
        dateList.add(statisticsDaily.getDateCalculated());
        switch (type) {
            case "register_num":
                numList.add(statisticsDaily.getRegisterNum());
                break;
            case "login_num":
                numList.add(statisticsDaily.getLoginNum());
                break;
            case "video_view_num":
                numList.add(statisticsDaily.getVideoViewNum());
                break;
            case "course_num":
                numList.add(statisticsDaily.getCourseNum());
                break;
            default:
                break;
        }
    }

    map.put("dataList", numList);
    map.put("dateList", dateList);
    return map;
}<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<h3 id="2-2ECharts"><a href="#2-2ECharts" class="headerlink" title="2.2ECharts"></a>2.2ECharts</h3><p>ECharts是百度的一个项目，后来百度把Echart捐给apache，用于图表展示，提供了常规的<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-line">折线图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-line">柱状图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-scatter">散点图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-pie">饼图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-candlestick">K线图</a>，用于统计的<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-boxplot">盒形图</a>，用于地理数据可视化的<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-map">地图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-heatmap">热力图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-lines">线图</a>，用于关系数据可视化的<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-graph">关系图</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-treemap">treemap</a>、<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-sunburst">旭日图</a>，多维数据可视化的<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-parallel">平行坐标</a>，还有用于 BI 的<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-funnel">漏斗图</a>，<a target="_blank" rel="noopener" href="https://echarts.baidu.com/option.html#series-gauge">仪表盘</a>，并且支持图与图之间的混搭。</p>
<p>官方网站：<a target="_blank" rel="noopener" href="https://echarts.baidu.com/">https://echarts.baidu.com/</a></p>
<blockquote>
<p>安装ECharts：npm install —save echarts@4.1.0</p>
</blockquote>
<p>前端实现：</p>
<pre class="line-numbers language-vue" data-language="vue"><code class="language-vue">&lt;template&gt;
  &lt;div class="app-container"&gt;
    &lt;!--表单--&gt;
    &lt;el-form :inline="true" class="demo-form-inline"&gt;

      &lt;el-form-item&gt;
        &lt;el-select v-model="searchObj.type" clearable placeholder="请选择"&gt;
          &lt;el-option label="学员登录数统计" value="login_num"/&gt;
          &lt;el-option label="学员注册数统计" value="register_num"/&gt;
          &lt;el-option label="课程播放数统计" value="video_view_num"/&gt;
          &lt;el-option label="每日课程数统计" value="course_num"/&gt;
        &lt;/el-select&gt;
      &lt;/el-form-item&gt;

      &lt;el-form-item&gt;
        &lt;el-date-picker
          v-model="searchObj.begin"
          type="date"
          placeholder="选择开始日期"
          value-format="yyyy-MM-dd" /&gt;
      &lt;/el-form-item&gt;
      &lt;el-form-item&gt;
        &lt;el-date-picker
          v-model="searchObj.end"
          type="date"
          placeholder="选择截止日期"
          value-format="yyyy-MM-dd" /&gt;
      &lt;/el-form-item&gt;
      &lt;el-button
        :disabled="btnDisabled"
        type="primary"
        icon="el-icon-search"
        @click="showChart()"&gt;查询&lt;/el-button&gt;
    &lt;/el-form&gt;

    &lt;div class="chart-container"&gt;
      &lt;div id="chart" class="chart" style="height:500px;width:100%" /&gt;
    &lt;/div&gt;
  &lt;/div&gt;
&lt;/template&gt;<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>实现js方法</p>
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token function">showChart</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">initChartData</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
  <span class="token comment">// this.setChart()//放在initChartData回调中执行</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span>

<span class="token comment">// 准备图表数据</span>
<span class="token function">initChartData</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  daily<span class="token punctuation">.</span><span class="token function">showChart</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>searchObj<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span><span class="token parameter">response</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token comment">// 数据</span>
    <span class="token keyword">this</span><span class="token punctuation">.</span>yData <span class="token operator">=</span> response<span class="token punctuation">.</span>data<span class="token punctuation">.</span>dataList

    <span class="token comment">// 横轴时间</span>
    <span class="token keyword">this</span><span class="token punctuation">.</span>xData <span class="token operator">=</span> response<span class="token punctuation">.</span>data<span class="token punctuation">.</span>dateList

    <span class="token comment">// 当前统计类别</span>
    <span class="token keyword">switch</span> <span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>searchObj<span class="token punctuation">.</span>type<span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">case</span> <span class="token string">'register_num'</span><span class="token operator">:</span>
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      <span class="token keyword">case</span> <span class="token string">'login_num'</span><span class="token operator">:</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'学员登录数统计'</span>
        <span class="token keyword">break</span>
      <span class="token keyword">case</span> <span class="token string">'video_view_num'</span><span class="token operator">:</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'课程播放数统计'</span>
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        <span class="token keyword">this</span><span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'每日课程数统计'</span>
        <span class="token keyword">break</span>
    <span class="token punctuation">}</span>

    <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setChart</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>

                
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